
dojo.provide("dojo.data.old.Observable");dojo.require("dojo.lang.common");dojo.require("dojo.lang.assert");dojo.data.old.Observable=function(){};dojo.data.old.Observable.prototype.addObserver=function(observer){dojo.lang.assertType(observer,Object);dojo.lang.assertType(observer.observedObjectHasChanged,Function);if(!this._arrayOfObservers){this._arrayOfObservers=[];}
if(!dojo.lang.inArray(this._arrayOfObservers,observer)){this._arrayOfObservers.push(observer);}};dojo.data.old.Observable.prototype.removeObserver=function(observer){if(!this._arrayOfObservers){return;}
var index=dojo.lang.indexOf(this._arrayOfObservers,observer);if(index!=-1){this._arrayOfObservers.splice(index,1);}};dojo.data.old.Observable.prototype.getObservers=function(){return this._arrayOfObservers;};